investigators searched for clues on Friday to identify what caused two huge explosions at a warehouse storing volatile chemicals at a busy port in northeast China, as foreign and local companies assessed the damage to their operations.
The blasts in the city of Tianjin on Wednesday night killed at least 50 people, including a dozen fire fighters, state media said. About 700 people were injured, 71 seriously.
Rescuers pulled one survivor from the wreckage on Friday, a city official told reporters. Columns of smoke from fires still burning rose from the blast site amid the devastation of crumpled shipping containers, thousands of torched cars and port buildings reduced to burnt-out shells.